The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 23, 2024
Filed:
Sep. 17, 2018
University of Utah Research Foundation, Salt Lake City, UT (US);
Jacob J Abbott, Salt Lake City, UT (US);
Shad Roundy, Salt Lake City, UT (US);
Jacob Aman, Salt Lake City, UT (US);
University of Utah Research Foundation, Salt Lake City, UT (US);
Abstract
An electromagnetic actuator for non-continuous rotation (cogging-torque actuator (CTA)) () comprises a support structure (), an output shaft () rotatable about and defining an axis of rotation (X), a permanent magnet rotor () comprising at least two magnetic poles () attached to the output shaft (), and a stator device () comprising a ferromagnetic pole body () attached to the support structure () and surrounding the at least two magnetic poles (). The ferromagnetic pole body () can have at least four ferromagnetic stator poles (-) each wrapped in a conductive wire (-) to define a stator coil. The at least four ferromagnetic stator poles (-) are sized, and spaced radially from each other, so as to define a maximum cogging torque of the electromagnetic actuator (). The CTA () can operate as an actuator, an elastic spring, a clutch, and/or a load support device.